Peiretti joined the UT Department of Biosystems Engineering and Soil Science on September 1, bringing with him more than a decade of hands-on experience in precision agriculture, agricultural engineering and international outreach. His appointment places him at the West Tennessee AgResearch and Education Center in Jackson, a strategic location in the heart of the state’s row crop country, from which he will serve producers statewide. His Extension program will evaluate the cost-effectiveness and large-scale application of technologies spanning precision planting, nutrient management, and pest and plant disease control, among other areas of crop production.

The challenge Peiretti is arriving to address is one that resonates far beyond Tennessee. Farmers today are surrounded by claims about what precision technology can do: planters that adjust seeding rates on the fly, sensors that detect crop stress before the human eye can see it, and software platforms that promise to turn field variability into profit. Very little of that information, however, comes from independent trials conducted under local conditions. Peiretti has been explicit about the gap he intends to fill. According to the university’s announcement, he notes that growers are surrounded by claims about what precision technology can do, but very little of that information comes from Tennessee fields. His stated goal is to generate independent, local data so producers can decide which technologies actually pay off in their own operations, as well as get more out of the equipment they already own.

That second part of his mission, helping farmers extract more value from machinery they have already purchased, is often overlooked in discussions of agricultural innovation. Precision agriculture equipment represents a substantial capital investment, and its full capabilities are frequently underused in practice. An Extension specialist whose job is to bridge that gap between what a machine can do and what a farmer actually needs it to do occupies a distinctive position in the land-grant university system, where the Extension service exists precisely to translate research into practical guidance for the people who grow the state’s food and fiber.

Peiretti’s own trajectory gives him an unusually international perspective on the field. Before joining UTIA, he spent more than 11 years as a research scientist at Argentina’s National Institute of Agricultural Technology, known as INTA, the country’s national agricultural research agency. Based at the experiment station in Salta, in northwestern Argentina, he specialized in precision crop and livestock farming systems, work that exposed him to production environments and technological constraints quite different from those of the American Midwest or the Mississippi Delta region that shapes much of Tennessee agriculture.

In 2021, Peiretti began doctoral studies at Kansas State University, one of the leading institutions in the United States for biological and agricultural engineering. His doctoral research evaluated precision planters and involved designing sensor-based data collection systems for corn and soybean production, two crops whose planting operations are among the most technologically intensive steps in modern row crop farming. Precision planters, which control seed spacing, depth and population with remarkable accuracy, are a natural focal point for cost-benefit analysis, since they sit at the intersection of machinery investment, seed cost and yield response.

He completed his PhD in biological and agricultural engineering in 2025, and along the way earned graduate certificates in geographic information systems and applied statistics. Those credentials matter for the kind of work he is now undertaking. Geographic information systems allow researchers to map and analyze spatial variability across fields, which is the foundation of any site-specific management recommendation. Applied statistics provides the tools to determine whether an observed yield difference or input saving is a real effect of a technology or simply noise from weather, soil variation or chance. In a field where marketing claims often outpace the evidence, that statistical rigor is what separates an Extension program from a product demonstration.

Leadership at UTIA has framed the appointment as a significant addition to the institute’s capacity. Justin Rhinehart, dean of UT Extension, says Peiretti brings a unique skill set to the organization. As a member of the UTIA faculty, Rhinehart says, Dr. Peiretti will lead a statewide precision agriculture program focused on evaluating the latest row crop technologies by working directly with producers to ensure innovations are practical, effective and responsive to the needs of Tennessee’s diverse row crop industry. That emphasis on working directly with producers reflects the core philosophy of Extension work: technology is only valuable if it fits the realities of the farms expected to adopt it.

Shawn Hawkins, head of the UT Department of Biosystems Engineering and Soil Science, has highlighted the collaborative dimension of the new role. According to Hawkins, Dr. Peiretti will collaborate with some of the university’s top experts in agronomy, soil science, weed science, plant pathology and entomology, and his contributions will expand the capabilities of the department while furthering the mission of UTIA statewide and beyond. That interdisciplinary structure is essential to evaluating precision technologies in a meaningful way. A variable-rate nitrogen recommendation, for example, cannot be judged by machinery performance alone; it must be assessed against soil science and crop physiology. Similarly, sensor-based disease detection depends on plant pathology expertise to interpret what the sensors are actually seeing.

For Tennessee’s row crop producers, the practical significance of the appointment lies in the promise of locally grounded answers. The state’s row crop industry includes corn, soybean, cotton and wheat production across diverse soils and growing conditions, and a technology that delivers a clear return in one region may fail in another. By conducting evaluations under Tennessee conditions and publishing the results through Extension channels, Peiretti’s program aims to give growers the independent evidence they need to make confident purchasing and management decisions. The University of Tennessee Institute of Agriculture, which comprises the Herbert College of Agriculture, the UT College of Veterinary Medicine, UT AgResearch and UT Extension, carries out this translation of research into practice as part of its land-grant mission of teaching, research and outreach. More information about the Department of Biosystems Engineering and Soil Science is available at bess.tennessee.edu, and the latest UTIA row crop research can be found at utcrops.com. As precision agriculture continues to evolve at a rapid pace, the arrival of a specialist dedicated to testing what works, and what merely promises to work, offers Tennessee farmers something increasingly rare in the technology marketplace: answers rooted in their own fields.

Subject of Research: Appointment of a precision agriculture Extension specialist for row crop production in Tennessee

Article Title: UTIA appoints new precision agriculture Extension specialist for row crops

Article References: UTIA appoints new precision agriculture Extension specialist for row crops. (n.d.). Original publication

Image Credits: AI Generated

DOI: Not provided

Keywords: precision agriculture, row crops, Extension, University of Tennessee, José Peiretti, Biosystems Engineering and Soil Science, West Tennessee AgResearch and Education Center, Kansas State University, INTA, agricultural technology, cost-effectiveness, Tennessee growers

Williams is not an outside hire parachuted into a leadership vacuum. He is a career veteran of the Milan Center, having arrived in 1995 as a research associate and spent nearly three decades embedded in the center’s field research operations. Over that span, he coordinated on-site research programs, managed field trials across the center’s experiment plots, and developed precision agriculture databases designed to improve both the collection and the quality of agronomic data. That last contribution deserves particular attention, because the value of any agricultural research station rests ultimately on the integrity of its trial data. Poorly structured or inconsistently gathered datasets undermine the statistical power of variety trials, herbicide evaluations, and fertility studies that producers rely on when making multimillion-dollar planting decisions.

His academic grounding reflects the applied orientation that has defined the Milan Center since its founding. Williams earned his bachelor’s degree in agricultural business from the University of Tennessee at Martin and a master’s degree in agriculture with an emphasis in weed science from Murray State University. Weed science, as a discipline, sits at the intersection of plant physiology, chemistry, and ecology, and it has become only more consequential as herbicide-resistant weed populations have spread across cotton and soybean country in the Mid-South. An administrator who understands resistance management, spray technology, and the economics of weed control brings a technically literate perspective to decisions about which trials deserve land, labor, and funding at a station where plot space is a finite and fiercely contested resource.

The scope of Williams’s responsibilities during the interim period illustrates just how operationally complex a modern research and education center has become. According to the university, he oversaw day-to-day operations supporting more than 18 faculty members conducting 144 active on-site field trials. Each of those trials represents a replicated experiment with its own protocol, treatment structure, measurement schedule, and data pipeline; coordinating them across a growing season requires logistical precision comparable to running a small research enterprise. Williams also managed more than eight permanent staff members in addition to seasonal employees, provided oversight for the Center’s West Tennessee Agricultural Museum, and coordinated the 34th Milan No-Till Field Day in July, an event that drew nearly 1,400 attendees.

That field day attendance figure is more than a public relations statistic. Field days are the mechanism by which land-grant institutions translate peer-reviewed research into practice, allowing farmers to see variety plots, equipment demonstrations, and pest management strategies firsthand and to interrogate the scientists directly. A turnout approaching 1,400 suggests that the Milan Center retains deep credibility with the production agriculture community it serves, and that its outreach model, refined over more than three decades of no-till field days, continues to draw stakeholders from well beyond the local county lines. The event’s longevity, now in its 34th iteration, also underscores how the center’s signature research theme has remained relevant long after no-till moved from heresy to convention.

The historical significance of that theme is difficult to overstate. Established in 1962, the AgResearch and Education Center at Milan became a cradle of the no-till technology movement, a cropping system that eliminates conventional tillage and plants directly into the residue of the previous crop. No-till agriculture dramatically reduces soil erosion, and the university credits the center’s pioneering work with saving millions of tons of Tennessee soil from loss to wind and water. Beyond erosion control, no-till systems alter soil moisture dynamics, build organic matter over time, reduce fuel and labor costs, and support soil biology, though they also demand new approaches to residue management, planter configuration, and weed control. The Milan Center’s decades of trials helped farmers in West Tennessee and across the country navigate that transition with evidence rather than anecdote.

Today the center hosts more than 100 research projects annually, spanning cotton, corn, soybeans, grain sorghum, wheat, and cover crops, among other systems. That portfolio reflects the diversity of West Tennessee agriculture, where row crop rotations dominate the landscape and where producers face persistent challenges from resistant weeds, variable soils, and volatile commodity markets. Williams has signaled that precision agriculture will remain a growth area under his leadership, with planned evaluations of variable rate seeding and variable rate fertilizer technologies. These tools, which use GPS-guided equipment and data layers to adjust input rates across a field according to measured variability, sit at the frontier of agronomic efficiency. Rigorous, independently conducted trials of such technologies are essential, because vendor claims do not always survive contact with replicated field data, and adoption decisions hinge on knowing whether the yield response justifies the capital investment.

Williams’s agenda also extends beyond row crops into community-facing programming. One upcoming project involves designing and implementing a community garden showcasing vegetable and fruit production appropriate to West Tennessee, conducted in partnership with UT-TSU Extension Gibson County and the UT Department of Food Science. The collaboration links the research station to the extension network and to food science expertise, creating a platform for demonstrating horticultural production techniques, nutrition education, and local food systems work. For a center historically identified with large-scale commodity crops, the garden represents a deliberate broadening of mission, one that connects urban and rural residents to the food production systems of their region and provides a living classroom for growers of every scale.

Institutional leadership at the university level has framed the appointment in terms of continuity and data-driven service. Hongwei Xin, dean of UT AgResearch, noted that Williams’s leadership and knowledge of agriculture will ensure the organization continues providing data-driven information for producers in Milan and nationwide, and pointed to the fact that Williams has spent almost his entire career with the university. Brown, the outgoing director, similarly emphasized Williams’s contributions to the center’s mission and to the producers it impacts, citing his work coordinating research, planning events, and furthering the center’s reputation as a pioneer in row crop technology. Williams himself described the appointment as an honor, saying he is building on a legacy established by those who came before him and pointing to upcoming projects intended to advance the center’s mission in new and innovative ways.

For the agricultural research community, the Milan appointment is a case study in succession planning at a land-grant station. Research centers lose institutional memory when leadership turns over abruptly, and the tacit knowledge of which fields have a history of specific pests, which plots carry residual treatment effects, and which producer relationships sustain long-term trials is not captured in any database. Promoting a 30-year insider who has already run the operation through a full interim cycle minimizes that loss while preserving the center’s research trajectory. As Williams assumes the role permanently, the center he inherits remains what it has been since 1962: a working landscape where questions about soil, seed, and sustainability are answered one replicated plot at a time, and where the answers travel from West Tennessee fields to farming systems far beyond them.

Subject of Research: Leadership appointment at a university agricultural research center specializing in no-till and precision agriculture

Article Title: Jason Williams officially named director of the AgResearch and Education Center at Milan

Article References: Jason Williams officially named director of the AgResearch and Education Center at Milan. (n.d.). Original publication

Image Credits: AI Generated

DOI: Not provided

Keywords: Jason Williams, University of Tennessee, AgResearch, Milan, no-till agriculture, precision agriculture, field trials, weed science, soil erosion, row crops, land-grant, agricultural research